Final answer:
Nadia, an army officer living on a military base, will go to the base exchange to buy new clothes for her children since it's accessible without leaving the base.
Step-by-step explanation:
If Nadia is an army officer living with her family on base and she needs to buy new clothes for her children but doesn't have time to take them off base, the most likely place she will go is the base exchange. The base exchange, also known as the BX or the Post Exchange (PX), is a facility similar to a department store that is available on military bases for service members and their families. It offers a variety of goods, including clothing, electronics, household items, and more, usually tax-free and at competitive prices.